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About Marcel Wolterbeek

- Marcel Wolterbeek on Stackoverflow
- Marcel Wolterbeek on LinkedIn

I am a free-lance software specialist. Writing professional, clean, and simple code in C# .NET is my passion.

My specializations:

  • Azure and Azure DevOps.
  • ASP.NET Core 6
  • Over 2 years of experience and very enthusiastic with Blazor WebAssembly.
  • Over 10 years of experience with Azure, ASP.NET (Core), Entity Framework (Core) and SQL Server.
  • Over 10 years of experience in creating native iOS and Android Apps with Xamarin and Xamarin Forms in C# .NET (now .NET Maui).
  • Over 20 years of Mobile software development experience.

Table of contents

  1. A bit of history
  2. Hire me

A bit of history

I live in Amsterdam, (Netherlands) with my wife and two sons (10 and 4). I was born on a small ecological farm on the bottom of a lake. As an eenvoudige boerenzoon I like to keep code simple!

After High School I started to study Forestry at Wageningen University. Soon I found out that Forestry was not exactly my cup of tea. I switched to Business Economics and managed to get a Masters degree (drs.) at the VU University Amsterdam.

During my study I had to do some programming (C and eh… Cobol) and I started to like it. I could take Software Engineering as an optional course at the department of Computer Science and I decided to specialize in Software Development after my study.

I started with Mobile Development in 1998, when cellphones were more like bricks. Actually, the first device I was programming had the nickname the axe, which was a mobile terminal with a matrix (!) printer included. It was used by cash transportation companies in several countries to keep track of all the details, print collect/delivery receipts and transfer the data to the back-end system. All that I had to cram into a Z80 processor with 16 KB memory…

Hire me

You can hire me just to help you to get started, to help with a complex part of a solution or for a project where you need a specialist in my area. I’m well prepared to do my work remote, but if you are located in (or close to) Amsterdam, The Netherlands, I can help you on-site if you want to. I’m committed to a long-term relationship with my customers, even when you only need me occasionally. I can:

  • Help you to migrate your .NET solutions to Microsoft Azure.
  • Help to setup your Azure and Azure DevOps environment efficiently, including CI/CD.
  • Help you upgrade to ASP.NET Core 6.
  • Help you getting started with Blazor.
  • Help you getting started with Xamarin or to smooth out a stalled Xamarin project.
  • Help to build Xamarin and/or Blazor components.
  • Help you when you need a specialist in my area for a shorter or longer period.

Drop me an email at I don’t answer emails from recruiters.

Copyright © 2020-2022 Marcel Wolterbeek, Amsterdam, The Netherlands.
Source code and documentation licensed by a MIT license.